MOUNT GREYLOCK OWL PROWL, 7:00—9:00 p.m. Free for all ages. Come investigate the mysterious Barred Owl. Enjoy hands-on investigation and go for a forest walk. Bring water, a snack, bug spray, and a headlamp. Rain cancels. Pre-registration is requested at (413) 499-4262.

Mount Greylock State Reservation 30 Rockwell Road, Lanesborough, MA 01237.